SCCP Overview

Description: OpenSS7 SS7 Stack Overview.

This is the Signalling System No. 7 (SS7) Signalling Connection Control Part (SCCP) component of the OpenSS7 stack. This component implements the SCCP functions in a STREAMS multiplexing driver.

The SCCP STREAMS driver provides three user-level interfaces: the Signalling Connection Control Part Interface (SCCPI), the Network Provider Interface (NPI) and the Transport Provider Interface (TPI).

An additional Global Title Interface (GTT) is provided to allow for Global Title Translation (GTT) under the control of a user level process or a specialized GTT module pushed on a GTT stream.

The SCCP STREAMS driver supports I_LINK and I_PLINK of Message Transfer Part Interface (MTPI) streams providing SS7 MTP Level 3 MTP-SAPs under the multiplexing driver.

The SCCP STREAMS driver supports all SCCP protocol classes and options including connectionless and connection-oriented. It supports a wide range of International and National protocol variants.